Road and street surfacing.



I Be it known that I, JOSEPH HAY AMIEs,

JOSEPH HAY AIVIIES, 0E ASPHALT COMPANY, SOUTH DAKOTA.

PHILADELPHIA, rEnnsiYLvANIA, ASSIGNOR To THE AMIES or PHILADELPHIA,

ROAD AND STREET scarAcmc.

Specification of Letters Patent. Patenfed Dec,- 23', 1913, Application filed March 7, 1913. Serial N o. 75 ,586.

No Drawing.

To all whom it may concern: oil, due to the escaping vapor given off by the slaking calcium oxid, wilPexpand to a great degree. During the above described fomentation, I spread the thoroughly mixed oil-and calcium oxid, at a desired thickness, over the surface of the concrete or like road or streetI As is well known,- the surface of concrete is naturally cold and damp and inasmuch as the calcium oxid of the above described mixture has not been provided with sufiicient water to gratify it, said calcium a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Road and Street Surfacing, of which the following is a specification.

This invention has relation to road and street construction wherein Portland cement concrete or groutor mortar is employed to which is added a bituminous facing and the principal object of the present invention is to provide a facing for concrete or like paving in which hydrocarbon or carbonaceous oils are treated to prevent their oxidation by practically fixing them by causing them to become albuminized.

A further object of the invention is to rovide a novel, efiicient and inexpensive EltHIHiIlOUS facing for concrete or like aving which may beeasily and expeditiously laid.

A still. further object of the invention is to apply to such concrete or like road or street a facing containing hydrocarbon or carbonaceous oil calculated to take up the inherent moisture present in the concrete in order to secure a good bond.

With these and other objects in'view the invention consists of the improvements hereinafter described and finally claimed.

In the practice of the invention, the road or street is constructed according to stand ard methods employing Portland cement or grout or mortar and mineral or earthy materials and water as may be called for by the specifications followed. After the setting of the concrete or like paving, I apply the facing of the invention, which, it may be stated, can be applied under varying climatic conditions. The facing is prepared as follows: I first add to calcium oxid in a powdered condition, boiling water in order to render the calcium oxid a stiff mortarlike mass. The hot water will cause the calcium oxid to immediately slake at which time I thoroughly mix therewith a highly heated hydrocarbon or carbonaceous oil. Such hydrocarbon or carbonaceous oil must be of a desirable penetration and should be heated to about 320 degrees F. During the mixing of the calcium oxid and the heated oil, a violent fomentation takes place and the nherent moisture of the generated by the calcium oxid to cause the hydrocarbon or carbonaceous oil used to penetrate the concrete. This penetration of the oil is uniform over the concrete'surface and in'fact aflixes itself firmly thereto in a manner'calculated to overcome many difli- 'culties and objections heretofore encountered in facing Portland cement concrete and like pavings, with hydrocarbon orcarbonaceous oils. I now spread over the concrete or like paving, coated as above described, earthy or mineral materials, preferably hot, which materials are then rolled thereby causing the oil of the coating to ooze up as it were in and through the earthy or mineral materials. The rolling process is continued until a finished wearing surface for the concrete road or street has been effected.

Having thus described'the nature and objects of the invention, what I claim is:

1. The h ing the surface of a concrete, grout or mor-' tar or like road or street which consists in first spreading over the surface thereof a mixture of heated hydrocarbon or carbonaceous oil, calcium oxid and hot water which mixture is applied while the calcium oxid is slaking and in a condition of active fomentation, then spreading thereover heated earthy or mineral materials and finally subjecting the same to compression to form a wearing surface. a

2. The herein described method of treating the surface of a concrete, grout, mortar or like street or road which spreading over the surface thereof a mixture of hydrocarbon or carbonaceous oil, calcium oxid and hot water which mixture is applied while the calcium oxid is slaking and in a condition of active fomentation PENNSYLVANIA, A ooRroEATIoN 0E oxid will, by chemical aflinity, take up the concrete surface and warm the same sufficiently by the heat erein described method of treatv consists in first which slaking of the calcium oxid serves to ooze up into and through said earthy and take up the inherent moisture of the pavin mineral materials. 10 and causes the same to readily accept an In testimony whereof, I have hereunto permit the penetration of said oil, then signed my name. 5 spreading thereover heated earthy or min- JOSEPH HAY AMIES.

eral materials and finally subjecting the Witnesses: same to compression to form a wearing sur- Wnznmu J. JAoKsoN,

face said compression causing said 011 to AGNES E.- CASKET. 

